Improvement in type-writing machines



2 Sheets-Sheet 1. H. R. M. J.,HANSBN. Type-Writing Machine.

'N o. 211,010. Patented Dec. 17,1878.

N'FETERS. Mofo-mummia, wasmmfox. DAGA 2 Sheets-Sheet. 2.

H. R. M. J. HANSEN. Type-Writing Machine.

Patented Dec. 17, 1878.l

NJETERS, FHOTWLUHOGRMEER. WASWNGTON, D C.

UNrrnD STATES Ra'rnir g FGE,

HANS R. M. J. HANSEN, OF COFENHAGEN, DENMARK.

IMPROVEMENT IN TYPE-WRITING MACHINES.

Specilication forming part of Letters Patent No. EBIILQMM), datedDecember 17, 1878 application filed November 27, 1878.

To all whom it may concern:

Bc it known that I, HANS Rasmus MILLING Joniiw HnNsnN, of the city ofCopenhagen, in the Kingdom of Denmark, have invented certain new anduseful Improvements in Writing-Machines or Typefvvriters; and I dohereby declare that the following is ai'ull, clear, and exactdescription thereof, which will enable others skilled in the art towhich it appertains to make and use the saine, reference being had tothe accompanying drawings, which form a part of this speciiication, andin which- Figure l is a perspective view of one of my improvedtype-writers embodying this in1- provcment. Fig. 2 is a side elevation.Fig. 3 is a front elevation; and Fig. 4 is a top or `plan view, thespherical typesupportin g shell or ball having -been removed to showmore clearly the operating partsv which constitute my presentimprovement.

Similar letters ot' reference indicate correspondiu g parts in all the:tgures This invention relates to that class of writin g-machines ortype-writers which have been fully described and explained in theseveral Letters Patent granted to ine heretofore in the United States;and it consists in the construction, arrangement of parts, and combination, with this class ot'type-writers, of certain devices whereby theyare adapted to be used with a narrow strip or band of paper, similar tothat used in the Morse telegraphic instruments, for receiving theimprints or impressions of the converging types, substantially as .Ishall now proceed to describe more fully.

In the drawing, A is the base-plate or support of the machine, hinged toone side of which, at a, is a movable plate or support, B, preferably oflike size and shape. Plate B is provided. at one end with bearings bfora swing ing or oscillating plate or frame, (l, upon the middle ot whichis secured the anvil D, which receives and supports the paper strip orband E between its guide-flanges d d, the anvil I) being so placed uponframe or plate C that its face shall be just below the point where thetypes converge, so that it will present that part or portion ot thepaper band E which rests upon and is supported by it to the action ofthe types when these are depressed in oper ating the machine.

The free end of the oscillating frame or plate C has a projection, c, onone side, to which is secured the lower end of a coiled spring, F,inclosed within a vertical tubular standard,

G, which is affixed upon an angular piece or l bracket, H, projectingupward from the hinged base-plate B. Bracket II has a verticalscrewthreaded perforation, through which is inserted a verticalset-screw, c, the point of which will limit the upward play or motion ofthe verticallyoscillating frame or plate C, which may be increased ordecreased by adjusting screw c. On plate B is secured a similarset-screw, j', which limits the downward play or movement of plate C, sothat the free end of this frame or plate will play between the twosetscrews e and f, andA may be adjusted accordin gly. v

he upper end of coiled spring F is secured in a pin, the lower end ofwhich, g, is square in section, and passes through a square perfora'tionin the cap of standard Gr, while its upper end is screw-threaded andscrewed into the adiustingbutton h. Thus it will be observed that byturning this button spring' F may be extended within its tubular case orstandard G and its tension increased 5 or, by turning button h in theopposite direction, a reverse result is eiiected and the spring isslackened.

I is a roller or cylinder having aroughened periphery, and havingsecured upon one of its sides the concentric ratchet-wheel K. L is another smaller cylinder or roller, hung in bea-rings in a lever, fe,which has its fulcruin in an upright, k, secured upon the tilting oroscillating frame or plate C. Roller L is kept in contact with roller Iby mea-us oi' a coiled spring, Z, as will be readily understood by rei'-erence to Fig. 2 of the drawings. 0n the opposite side of the anvil D issecured, upon plate C, the flanged guide-roller M for the paper strip orband E. m. is a spring-pawl secured upon and projecting upward fromplate B through a perforation in the plate or frame U, and n is anotherspring-pawl, which is hung in a standard secured upon the tilting plateor frame C, the pawls m and a being ar ranged, one on each side of theratchet-wheel K, as shown in Fig. 2.

From the foregoing description, taken in connection with. the drawings,the operation of this invention will be readily understood. At eachdepression of one of the types N its point will strike the paper stripat the place marked a: in Fig. 4 and depress the anvil D, which carriesand supports the strip at this point, and plate O, upon which the anvilis secured. Plate or frame C is thus tilted downward with its rollers IL and pawl u, which, as it engages with the teeth in ratchet-wheel K,will prevent this and roller I, to which it is secured, from turningwhile pawl m passes over the teeth on the opposite side during thisdownward motion of plate C. When the pressure is released in theinterval between imprinting two successive letters or signs upon thepaper strip, the tension of spring F will raise or elevate plate C upinto its original position, during which motion pawl mwill engage withthel teeth in the ratchet-wheel K and turn this one tooth, therebymoving the paper strip, which is inserted between and fed forward byrollers I L, the distance of one letter. At each depression of thetype-heads ythis operation is repeated, so that the paper strip or bandwill be fed forwardby the direct contact of the types with thepaper-supporting anvil or cushion D and tilting plate or frame C withoutthe aid of any intermediate mechanism. To move the paper strip the spaceof one or more letters, to form blank spaces between words, a blind typeor key, O, is employed, which simply strikes against and depresses plateG without marking the paper.

Having thus fully described my invention, I claim and desire to secureby Letters Patent of the United States- 1. As an improvement inwriting-machines or type-writers, the paper-feeding mechanism hereindescribed, adapted for feeding paper in the form of a narrow strip orband, andm consisting, essentially, of an oscillating plate or frame, C,carrying the feed-rollers I L, anvil D, and guide-roller M, and adaptedto receive its tilting or oscillating motion from direct contact of theface of said anvil with the typeheads when these are depressed,substantially as and for the purpose herein shown and specified. p f

2. The oscillating plate or frame (l, having anvil D and rollers M I L,arranged as de scribed, in combination with base-plate B, adjustablecoiled spring F, and the set-screws e y f, substantially as and for thepurpose herein bined to operate substantially in the manner and for thepurpose herein shown and described.

In testimony whereof I have signed my name to the foregoingspecification in the presence of two subscribing witnesses.

HANs RAsMUs MALLINGJOHAN HANSEN.

Witnesses:

BUD. PETERSEN, H. DUcH.

